Northwire Canada EditionThursday, August 13, 2026
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FL 0.455 +4.6% ICM 0.055 +0.0% AMCO 0.355 +10.9% MSR 0.440 +0.0% REVX 1.53 +5.5% SLI 3.39 −0.9% ALTN 0.080 +14.3% BVA 0.850 −2.3% EDM 0.640 +0.0% GPAC 0.330 −9.6% EU 1.93 +0.0% RIO 3.36 −1.2% BRON 0.045 +0.0% SNAG 0.270 +0.0% TWR 0.140 −3.5% INTR 0.785 +0.6% FL 0.455 +4.6% ICM 0.055 +0.0% AMCO 0.355 +10.9% MSR 0.440 +0.0% REVX 1.53 +5.5% SLI 3.39 −0.9% ALTN 0.080 +14.3% BVA 0.850 −2.3% EDM 0.640 +0.0% GPAC 0.330 −9.6% EU 1.93 +0.0% RIO 3.36 −1.2% BRON 0.045 +0.0% SNAG 0.270 +0.0% TWR 0.140 −3.5% INTR 0.785 +0.6%
Drill Results

First Mining Expands Newly Discovered Miroir Target with Drill Hole DUP25-064 Returning 3.23 g/t Au over 25.9 m

By The Northwire Desk — AI Analysis Sep 24, 2025 · 07:00 FF · 0.29 First Mining Gold Corp.
FF · Price

Executive Summary

  • First Mining reported significant near‑surface gold intercepts from drill hole DUP25‑064, including 3.23 g/t Au over 25.9 m (with 11.20 g/t Au over 2.0 m and 10.16 g/t Au over 1.4 m), extending the Miroir target to a vertical depth of ~100 m.
  • Additional holes (DUP25‑066, DUP25‑067) also returned notable grades (e.g., 1.37 g/t Au over 30.6 m; 2.58 g/t Au over 4.0 m), confirming continuity of higher‑grade mineralization across the target.
  • The results bring total drilling at Miroir to ~4,450 m in 20 holes, supporting potential resource growth and keeping the target open both up‑dip and down‑dip.

Key Details

  • Drill Hole DUP25‑064:
  • 3.23 g/t Au over 25.9 m (159.1–185.0 m) – primary intercept.
  • 11.20 g/t Au over 2.0 m (164.0–166.0 m).
  • 10.16 g/t Au over 1.4 m (176.6–178.0 m).

  • Additional high‑grade intervals: 4.64 g/t Au over 4.6 m; 6.30 g/t Au over 2.4 m; 8.72 g/t Au over 3.0 m; 4.15 g/t Au over 7.4 m.

  • Drill Hole DUP25‑066 (45 m step‑out east):

  • 1.37 g/t Au over 30.6 m (157.0–187.6 m).
  • 2.56 g/t Au over 4.0 m (157.0–161.0 m).

  • 2.55 g/t Au over 6.6 m (179.0–185.6 m).

  • Drill Hole DUP25‑067:

  • 2.58 g/t Au over 4.0 m (78.0–82.0 m).

  • Total drilling to date on Miroir: ~4,450 m in 20 holes; 600 m of the 2025 program reported in this release.

  • Mineralization extends to ~100 m depth and remains open both up‑dip toward surface and down‑dip.
  • Target geology: brecciated/altered mafic volcanic lithologies, syenite‑basalt contacts, with disseminated pyrite and quartz veinlets.

Notable Quotes

“The Miroir target continues to deliver new discoveries within the largely underexplored volcanic setting of the Duparquet Project,” said Dan Wilton, CEO of First Mining. “The strong grades and widths encountered to date provide new and exciting opportunities in our review of development scenarios that can now include near‑surface, higher‑grade mineralization potential.”

Read the original news release →

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